Printing mechanism.



R. N. RUSSELL, E. W. LESHER & A. J. MEUNIER.

' PRINTING MECHANISM.

APPLICATlON FILED AUG.23. l9l3. RENEWED APR- 9. T918.

' Patented Nov. 12, 1918 2 SHEETS-SHEET l.

fnvewfa/r sr W/fnesses R. N. RUSSELL, E. W. LESHER & A. J'. MEUNIER.

PRINTING MECHANISM.

APPLICATION men AUG.23. I9l3. RENEWED APR-9.1918.

1 ,284,932, Patented Nov. 12,1918.

2'SHEETS-SHEET 2.

ROBERT N. RUSSELL, EARL W. LESHEB, AND ALFRED J. MEUNIER, OF CLEVELAND, OHIO, ASSIGNORS, BY MESNE ASSIGNMENTS, TO THE ADVANCE MANUFACTURING COMPANY, OF DETROIT, MICHIGAN, A

CORPORATION OF MAINE.

PRINTING MECHANISM.

Application filed August 23, 1913, Serial No. 786,308.

To all whom it may concern:

Be it known that we, ROBERT N. RUssELL, EARL WV. Lnsrmn, and ALFRED J. MEUNIER, citizens ofthe United States, and residents of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Printing Mechanism, of which we hereby declare the following to be a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a printing mechanism, particularly to the printing drum and the means for holding type thereon.

One object of the invention is to provide means for rigidly securing the type in place on a printing drum or cylinder to permit printing therefrom.

Another object of the invention is to provide improved type clamping means adapted to retain type in engagement with the surface of the cylinder and prevent them from becoming loose thereonor from moving in a radial direction relative thereto.

Another object of the invention is to provide means which secure the type in close engagement with the cylinder and drum and against movement relative to each other, whereby the printing drum will form an effective support for the inner ends of the type and accurate and positive printing effects may be obtained.

Other objects of the invention will be apparent to those skilled in the art from the following description.

For the purpose of illustration, we have, in the accompanying drawings shown and herein described one form of printing mechanism embodying our invention.

Figure 1 is a view partly in elevation and partly in section of a printing drum embodying our invention;

Fig. 2 is a transverse section of the drum;

Fig. 3 is an end elevation of the drum.

Fig. A is a perspective view of a portion of the periphery of the cylinder showing portions of two rows of type mounted thereon;

Fig. 5 is a side view of one type showing rectangular opening therethrough;

Fig. 6 is an end view of the type;

Fig. 7 is a perspective view of one of the clamping segments over which the type are sleeved;

Specification of Letters Patent.

Patented Nov. 12, 1918.

Serial No. 227,604.

Renewed. April 9, 1918.

Fig. 8 is a perspective view of one of the spacing or justifying segments;

Fig. 9 is a perspective view of one of the spring clips employed to retain the type upon. the type holding segments;

Fig. 10 is a side view of a non-interlocking form of type; and

Fig-11 is a side view thereof.

In these views A represents a printing cylinder or drum preferably mounted upon a rotatable shaft B. The cylinder or drum is preferably provided with terminal flanges C, between which type D are secured. The flanges C may be formed integral with the cylinder or drum, as-shown in Fig. 1.

Each type D preferably has tapering sides (see Figs. 6 and 11) and is formed with an opening D through its body portion. The opening D is preferably of rectangular shape.

E indicates as an entirety a segment or curved member on which one or more type D are adapted to be sleeved and secured to the cylinder A as will be later described. The segment E is curved on an arc struck from the axis of the cylinder A so that it is disposed parallel to the cylinder when positioned thereon. As a re sult of this construction, all the type in each row of type. are uniformly held against the cylinder. By forming openings in the type and extending the segment therethrough, the rows of type may be placed in abutting engagement to permit printing with minimum space between the rows of type.

The openings D in the type are of a size to permit them to be easily threaded on the segments, or the latter inserted in and removed therefrom, but in order that the segments may rigidly secure them to the cylinder A, the bottom walls 03 of the openings D must be equally distanced from their lower edges, so that the segment E will engage the wall d of each and every type in a row, as shown in Fig. 2. When so constructed the segment E will engage each type D in the row and firmly press it against the cylinder.

E indicates a hook provided at or near one end of the segment E. E indicates a correspondingly hooked flange upon a cross bar E secured in any well known way to the cylinder A. The hooked end E of the segment E is introduced under the hooked flange E these elements preferably serving as a pivot about which the segment E may be swung to position the other extremity E of the segment down behind the flange E secured in any desired manner to the other side of the cylinder. E indicates a shoulder provided on or near the end E of the segment E. F indicates a device adapted to engage with the extremity E of each seg' ment E to secure the latter to the cylinder. The type securing device F preferably comprises a rod extending longitudinally of the cylinder A and rotatably mounted at its opposite ends in the beads or flanges C thereof.

F indicates a shoulder provided on and extending longitudinally of the rod F. The shoulder F is adapted to engage the shoulder E on the segment E and exert tension thereon to press the type D against the cylinder A.

The rod F is preferably rotated by suitable means, indicated as an entirety at G, which may be constructed and arranged to lock the rod against rotation when released. The operating means G preferably consist of a worm gear 9 fixed to the extended end of the rod F anda worm Gr mounted in suitable bearings upon one head of the cylinder A. The worm G may be turned by means of a milled head G As the worm G prevents the worm gear 9 from turning, it'will be seen that when the head G is rotated to turn the rod F inthe direction to clamp the segment or segments E against the type D, the rod F is locked in the position to which it is moved so that the type cannot thereafter become loose.

The circumferential rows of type may be justified by means of spacing segments H, H. The spacing segments H are preferably provided with clamping segments H, H, which are similar in construction to the type holding segments E. The segments H are inserted in grooves formed in the opposite sides of the spacing segments and secured therein by screws 71,.

Each row of type, when sleeved on a segment E, engages at one end shoulders c, 0, adjacent one end of the segment. The type D- of each row may be held together and against the shoulders e, e, by a spring clip J (see Figs. 1,2 and 9). Each clip J is preferably formed from a piece of sheet metal.-

Centrally the clip is formed with an opening for the passage of the segment E. The opposite ends ofthe clip are curved backwardly to form sides J which yieldingly engage the body of the segn'ient. The sides J may be slitted at J J to provide portions J which may be bent to inclose the inner and outer edges of the segments E.

In Figs. 5 and 6 we have shown a slightly modified construction of type D in which it is provided on one edge with a groove (Z and on the opposite edge with a ridge (Z the ridges onthe type D in one row extendtion.

1 indicates a plurality of adjustable devices carried by one of the cylinder heads and adapted to engage the segment H at one end of the cylinder and through it compress the rows of type together. The de vices I preferably comprise screws, extending through screw threaded openings in the cylinder head or flange C. I

From the foregoing description it will be seen that the type may be readily positioned on and removed from the cylinder A. It will also be seen that the clamping means operate to maintain the type in rigid rela tionship to each other and the cylinder, so that the latter serves as a rigid back and support so that proper printing impressions can be readily made. I

To those skilled in the art of making mechanism of the class described, many alterations in construction and widely differing embodiment and applications of our invention will suggest themselves without departing from the spirit and scope thereof. Our disclosures and the description herein are purely illustrative and are not to be in any sense limiting.

Having described the invention what we claim as new and desire to secure by Letters Patent is:

1. The combination with a printing cylinder, of a line of type extending circumferentiallyof and resting upon the periphery of said cylinder, said type being formed with alined perforations, a curved compressing and retaining segment extending circumferentially of said cylinder and passing through the openings formed ,in said type, interlocking members for connecting segment to said cylinder, and separate interlocking members for connecting the opposite end of said segment to said cylinder, said segment being arranged substantially concentric to the cylinder and acting uniformly onall of the type carried thereby.

2. The combination with a printing cylinder, of a line of type extending circumferentially of and resting on said cylinder, said type being formed with perforations the lower edges of which aline with each other, a retaining device arranged circumferenti ally of said cylinder and extending through the perforations formed in said type and engaging the lower edges of the perforations to bind them against the surface of the cylinder, interlocking members between the cylinder and extremities of said retaining device, and means for operating one interlocking member to engage with its corresponding member on said retaining device.

3. The combination with a printing cylone end of said inder, of a line of circumferentially arranged type, said type being formed with perforations therethrough, the lower edges of which are in alinement with each other, and a curved retaining device for said series of type, said retaining device extending circumferentially of and arranged concentric to said cylinder and passing through said perforations in said type, means for securing one end of said retaining device to said cylinder, and separate cooperating devices for securing the other end of said segment retaining device to said cylinder, one of said securing devices being movable to engage and disengage the other securing device.

4:. The combination with a printing cylinder, of a line of circumferentially arranged type the opposite faces of each of which taper or converge toward its lower end and engage face to face the opposing faces of adjoining type, and means acting upon said type in a radial direction to bind them to the circumferential surface of said cylinder and together.

5. The combination with a printing cylinder, of a line of circumferentially arranged type the opposite faces of each of which taper or converge toward its lower end and engage face to face the opposing faces of adjoining type, and means acting upon said type in a radial direction to bind them to the circumferential surface of said cylinder and together, said securing means comprising a circumfercntially arranged segment connected at one end to said cylinder and means for detachably securing the opposite end of said segment to said cylinder.

6. The combination with a printing cylinder, of a line of circumferentially arranged type the opposite faces of each of which taper or converge toward its lower end and engage face to face the opposing faces of adjoining type, and means acting upon said type in a radial direction to bind them to the circumferential surface of said cylinder and together, said securing means comprising a circumferentially arranged segment pivotally connected at one end to said cylinder and means for detachably securing the opposite end of said segment to said cylinder.

7. The combination with a printing cylinder, of a plurality of rows of separable type each extending circumferentially of said cylinder, a plurality of curved segments arranged concentric to said cylinder each engaging a row of type to secure it to said cylinder, means for connecting one end of each of said segments to said cylinder, and means engaging the opposite ends of said segments simultaneously to detachably secure them to said cylinder.

8. The combination with a printing cylinder, of a plurality of rows of separable type each extending circumferentially of said cylinder, a plurality of curved segments arranged concentric to said cylinder each engaging a row of type to secure it to said cylinder, means for connecting one end of each of said segments to said cylinder, and means engaging the opposite ends of said segments simultaneously to detachably secure them to said cylinder, the last said means including a rotatable member mounted on and extending longitudinally of said cylinder.

9. The combination with a printing cylinder, of a series of separable type the opposide sides of each of which taper or converge toward its lower end, each of said separable type being formed with a perforation which alines with the perforation of adjoining type, a curved member extending through the perforations formed in said type and arranged to engage the lower end walls of the perforations of all of said type substantially simultaneously, means for securing one end of said curved member to said cylinder, and means for detachably securing the opposite end of said member to said cylinder, the last said means being an ranged to exert tension on each of said type in a direction substantially radiallyof the axis of said cylinder.

10. The combination with a cylinder, of a series of tapered type circumferentially disposed thereon, and formed with alined openings, a type holding segment passing through said openings, a hooked extremity for said segment, an engaging flange upon the cylinder for said hooked extremity, and a rotatable member in said cylinder adapted to engage the other extremity of said segment, and engaging means upon said segment and rotatable member.

11. The combination with a cylinder having a flange at each end, of a series of circumferentially disposed type thereon, said series of type closely engaging each other and the type of adjoining series, and each series of type being formed with alined openings, type holding segments passing through said openings, means for detachably securing said segments to said cylinder to compress said type thereon, means for retaining the type upon said type holding segments in printing position, spacing means for said series of type, and means for compressing said type and spacing means together.

12. The combination with a printin cylinder, of a plurality of rows of separalie type each extending circumferentially of said cylinder, a plurality of curved segments arranged concentric to said cylinder and each engaging a row of type to secure it to said cylinder, means for connecting one end of each segment to said ylinder, means for detachably connecting the opposite end of each segment to said cylinder, and interlocking means he- &

tween the abutting edges of the rows of type to prevent relative movement between them.

13. The combination with a printing cylinder, of a plurality of rows of separable type each extending circumferentially of said cylinder, a plurality of curved segments arranged concentri to said cylinder and each engaging a row of type to secure it to said cylinder, means for connecting one end of each of said segments to said cylinder, means engaging the opposite ends of said segments simultaneously to detachably secure them to said cylinder, and means for operating said securing means, the elements of said operating means cooperating to prevent the release of said securing means.

14. The ombination with a cylinder, of lines of type contacting with the periphery thereof, said lines of type contactin also with each other in all directions, sai type being tapered to conform themselves to the outer surfaceof the cylinder, and arranged in parallel circumferential lines, and each line of type being formed with transverse perforations, segmental securing members passing through said perforations, and means for adjustably and separably securing each segment to said cylinder, said adjusting means serving to compress said lines of type upon said cylinder.

In testimony whereof, we hereunto set our hands this 12 day of August 1913.

ROBERT N. RUSSELL. EARL W. LESHER. In presence of- AUGUSTUS IV. BELL, WVM. M. Mormon. In testimony whereof I hereunto set my hand this 19 day of August 1913.

ALFRED J. MEUNIER. In presence of WM. M. MONROE, AUGUSTUS W. BELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

It is hereby certified that in Letters Patent No. 1,284,932, granted November 12, 1918, upon the application of Robert N. Russell, Earl W. Lesher, and Alfred J. M eunier, of Cleveland, Ohio, for an improvement in Printing Mechanism, errors appear in the printed specification requiring correction as follows: Page 3, line 12, claim 3, strike out the ord segment, page 1, line 27, claim 14, for the Word separably read separately; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Ofiice.

Signed and sealed this 24th day of December, A. D. 1918.

[SEAL] F. W. H. CLAY,

Acting Commissioner of P alems. 

